Remove support for the GPL incompatible FTDI D2XX library
[openocd.git] / src / pld / virtex2.c
1 /***************************************************************************
2 * Copyright (C) 2006 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
17 ***************************************************************************/
18
19 #ifdef HAVE_CONFIG_H
20 #include "config.h"
21 #endif
22
23 #include "virtex2.h"
24 #include "xilinx_bit.h"
25 #include "pld.h"
26
27 static int virtex2_set_instr(struct jtag_tap *tap, uint32_t new_instr)
28 {
29 if (tap == NULL)
30 return ERROR_FAIL;
31
32 if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr) {
33 struct scan_field field;
34
35 field.num_bits = tap->ir_length;
36 void *t = calloc(DIV_ROUND_UP(field.num_bits, 8), 1);
37 field.out_value = t;
38 buf_set_u32(t, 0, field.num_bits, new_instr);
39 field.in_value = NULL;
40
41 jtag_add_ir_scan(tap, &field, TAP_IDLE);
42
43 free(t);
44 }
45
46 return ERROR_OK;
47 }
48
49 static int virtex2_send_32(struct pld_device *pld_device,
50 int num_words, uint32_t *words)
51 {
52 struct virtex2_pld_device *virtex2_info = pld_device->driver_priv;
53 struct scan_field scan_field;
54 uint8_t *values;
55 int i;
56
57 values = malloc(num_words * 4);
58
59 scan_field.num_bits = num_words * 32;
60 scan_field.out_value = values;
61 scan_field.in_value = NULL;
62
63 for (i = 0; i < num_words; i++)
64 buf_set_u32(values + 4 * i, 0, 32, flip_u32(*words++, 32));
65
66 virtex2_set_instr(virtex2_info->tap, 0x5); /* CFG_IN */
67
68 jtag_add_dr_scan(virtex2_info->tap, 1, &scan_field, TAP_DRPAUSE);
69
70 free(values);
71
72 return ERROR_OK;
73 }
74
75 static inline void virtexflip32(jtag_callback_data_t arg)
76 {
77 uint8_t *in = (uint8_t *)arg;
78 *((uint32_t *)arg) = flip_u32(le_to_h_u32(in), 32);
79 }
80
81 static int virtex2_receive_32(struct pld_device *pld_device,
82 int num_words, uint32_t *words)
83 {
84 struct virtex2_pld_device *virtex2_info = pld_device->driver_priv;
85 struct scan_field scan_field;
86
87 scan_field.num_bits = 32;
88 scan_field.out_value = NULL;
89 scan_field.in_value = NULL;
90
91 virtex2_set_instr(virtex2_info->tap, 0x4); /* CFG_OUT */
92
93 while (num_words--) {
94 scan_field.in_value = (uint8_t *)words;
95
96 jtag_add_dr_scan(virtex2_info->tap, 1, &scan_field, TAP_DRPAUSE);
97
98 jtag_add_callback(virtexflip32, (jtag_callback_data_t)words);
99
100 words++;
101 }
102
103 return ERROR_OK;
104 }
105
106 static int virtex2_read_stat(struct pld_device *pld_device, uint32_t *status)
107 {
108 uint32_t data[5];
109
110 jtag_add_tlr();
111
112 data[0] = 0xaa995566; /* synch word */
113 data[1] = 0x2800E001; /* Type 1, read, address 7, 1 word */
114 data[2] = 0x20000000; /* NOOP (Type 1, read, address 0, 0 words */
115 data[3] = 0x20000000; /* NOOP */
116 data[4] = 0x20000000; /* NOOP */
117 virtex2_send_32(pld_device, 5, data);
118
119 virtex2_receive_32(pld_device, 1, status);
120
121 jtag_execute_queue();
122
123 LOG_DEBUG("status: 0x%8.8" PRIx32 "", *status);
124
125 return ERROR_OK;
126 }
127
128 static int virtex2_load(struct pld_device *pld_device, const char *filename)
129 {
130 struct virtex2_pld_device *virtex2_info = pld_device->driver_priv;
131 struct xilinx_bit_file bit_file;
132 int retval;
133 unsigned int i;
134 struct scan_field field;
135
136 field.in_value = NULL;
137
138 retval = xilinx_read_bit_file(&bit_file, filename);
139 if (retval != ERROR_OK)
140 return retval;
141
142 virtex2_set_instr(virtex2_info->tap, 0xb); /* JPROG_B */
143 jtag_execute_queue();
144 jtag_add_sleep(1000);
145
146 virtex2_set_instr(virtex2_info->tap, 0x5); /* CFG_IN */
147 jtag_execute_queue();
148
149 for (i = 0; i < bit_file.length; i++)
150 bit_file.data[i] = flip_u32(bit_file.data[i], 8);
151
152 field.num_bits = bit_file.length * 8;
153 field.out_value = bit_file.data;
154
155 jtag_add_dr_scan(virtex2_info->tap, 1, &field, TAP_DRPAUSE);
156 jtag_execute_queue();
157
158 jtag_add_tlr();
159
160 if (!(virtex2_info->no_jstart))
161 virtex2_set_instr(virtex2_info->tap, 0xc); /* JSTART */
162 jtag_add_runtest(13, TAP_IDLE);
163 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
164 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
165 if (!(virtex2_info->no_jstart))
166 virtex2_set_instr(virtex2_info->tap, 0xc); /* JSTART */
167 jtag_add_runtest(13, TAP_IDLE);
168 virtex2_set_instr(virtex2_info->tap, 0x3f); /* BYPASS */
169 jtag_execute_queue();
170
171 return ERROR_OK;
172 }
173
174 COMMAND_HANDLER(virtex2_handle_read_stat_command)
175 {
176 struct pld_device *device;
177 uint32_t status;
178
179 if (CMD_ARGC < 1)
180 return ERROR_COMMAND_SYNTAX_ERROR;
181
182 unsigned dev_id;
183 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], dev_id);
184 device = get_pld_device_by_num(dev_id);
185 if (!device) {
186 command_print(CMD_CTX, "pld device '#%s' is out of bounds", CMD_ARGV[0]);
187 return ERROR_OK;
188 }
189
190 virtex2_read_stat(device, &status);
191
192 command_print(CMD_CTX, "virtex2 status register: 0x%8.8" PRIx32 "", status);
193
194 return ERROR_OK;
195 }
196
197 PLD_DEVICE_COMMAND_HANDLER(virtex2_pld_device_command)
198 {
199 struct jtag_tap *tap;
200
201 struct virtex2_pld_device *virtex2_info;
202
203 if (CMD_ARGC < 2)
204 return ERROR_COMMAND_SYNTAX_ERROR;
205
206 tap = jtag_tap_by_string(CMD_ARGV[1]);
207 if (tap == NULL) {
208 command_print(CMD_CTX, "Tap: %s does not exist", CMD_ARGV[1]);
209 return ERROR_OK;
210 }
211
212 virtex2_info = malloc(sizeof(struct virtex2_pld_device));
213 virtex2_info->tap = tap;
214
215 virtex2_info->no_jstart = 0;
216 if (CMD_ARGC >= 3)
217 COMMAND_PARSE_NUMBER(int, CMD_ARGV[2], virtex2_info->no_jstart);
218
219 pld->driver_priv = virtex2_info;
220
221 return ERROR_OK;
222 }
223
224 static const struct command_registration virtex2_exec_command_handlers[] = {
225 {
226 .name = "read_stat",
227 .mode = COMMAND_EXEC,
228 .handler = virtex2_handle_read_stat_command,
229 .help = "read status register",
230 .usage = "pld_num",
231 },
232 COMMAND_REGISTRATION_DONE
233 };
234 static const struct command_registration virtex2_command_handler[] = {
235 {
236 .name = "virtex2",
237 .mode = COMMAND_ANY,
238 .help = "Virtex-II specific commands",
239 .usage = "",
240 .chain = virtex2_exec_command_handlers,
241 },
242 COMMAND_REGISTRATION_DONE
243 };
244
245 struct pld_driver virtex2_pld = {
246 .name = "virtex2",
247 .commands = virtex2_command_handler,
248 .pld_device_command = &virtex2_pld_device_command,
249 .load = &virtex2_load,
250 };